Re: [Boost-users] [statechart] Getting the current state fromanasyncmachine

From: Andreas Huber (ahd6974-spamgroupstrap_at_[hidden])
Date: 2006-08-14 15:41:37

Johan Nilsson wrote:
[snip]
> I'm very well aware of that, and can understand why you didn't
> provide a way for this from the beginning as it is generally unsafe.

Sorry, I figured that you already know that. I've developed a habit of 
overexplaining things in public forums.

[snip]
> Thank you! It works perfectly.

I forgot to mention that this only works portably if you are compiling 
with BOOST_STATECHART_USE_NATIVE_RTTI defined. It works always with GCC 
as state_base has a virtual dtor to avoid compiler warnings. Here's the 
habit again ;-)...

> The only (minor) annoyance is that I'll have to provide the
> unconsumed_event inside the class for testing purposes only, but that
> could be conditionally enabled using preprocessor directives.

Right, I've wondered before whether I should provide an appropriate 
fifo_scheduler method for this but have so far rejected it because it 
would mean to add something asynchronous_state_machine-specific to the 
otherwise generic interface of fifo_scheduler. I'll think about this 
some more, ideas welcome...

Regards,

-- 
Andreas Huber
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